Benjamin f



. UNiTnn STATES PATENT OFFICE.

BENJAMIN F. RICE, OF CLINTON, MASSACHUSETTS, `ASSIGNOR TC BR. SMITH ANDC. II. MORGAN.

IMPROVEMENT lN'lVIACHINES FOR MAKING PAPER BAGS, 80C.

Specification forming part of Letters Patentv No. M', E84, dated April28, 1857.

To aZZ whom t may concern,.-

Be it known that I, BENJAMIN F. RICE, of Clinton, in the county ofWorcester and State of Massachusetts, have invented a new or ImprovedMachine for Making Paper Bags, Tubular File-Sli ps, dsc. and I do herebydeclare that the same is fully described and represented in thefollowing specification and the accompanying drawings, of which- Figurel exhibits a side elevation of the said machine; Fig. 2, an elevation ofthe other side thereof; Fig. 3, a plan or top view of it; Fig. 4, avertical central and longitudinal section of it; Fig. 5, a transversesection of the tube-former c, the same being taken near the first guidep2, to be hereinafter described. Fig. 6 is another transverse section ofsaid former, taken close to the guides Z2 m2, (to be hereinafterexplained) and exhibits the said guide and the slot j, through which oneedge lof the sheet of paper passes in order to keep the said edge fromcontact with the paster. Fig. 7 is another transverse section of thetube-former, taken near that end of it which is adjacent to thecutting-knife of the mach'ine. Figs. 8 and 9 are enlarged edge and sideviews of the linked gearing for operating the feeding-rollers, the samebeing made to exhibit, by blue lines, the manner in which other orchange gears can be applied and used so as to vary the velocity of thefeed of the paper, in order to enable the machine to make bags orfileslips-diifering in length from those made by employing but threegears, the said Figs. 8 and 9 showing how four gears maybe employed.Figs. l0 and ll Vare respectively sectional and top views of theexpanding tubeformer, the same being constructed so that its width maybe increased or diminished as occasion may require.

In such drawings, (t exhibits the bed-plate of the machine, on which areelevated standards (Z (Z for supporting a paper beam or roller q2 andtwo creasing-rollers n2 o2, arranged as shown in Figs. l, 23, and 4, thesaid rollers n2 o2 being constructed so that the lower one shall extendup into a space formed around and in the upper of them, as shown in Fig.4, the length of the cylindrical part of the roller extending up intothe upper rollerbeing equal to the length of the space which receives itdiminished by twice the thickness of the sheet of paper that is to berun between the said two creasing-rollers.

lVhen the machine is in operation, the roll of paper is wound around theroller q2 and extends upward therefrom and passes between thecreasingrollers n2 02, thence under a transverse bar p2 and upon the topsurface of a long baror former c, arranged as shown in the drawings.After the paper has been extended on the former c as far as the guidesPm? it is bent around the said former e., so that one edge of it may lapa short distance over the other, the lapping part being extended into acurved slotj, made through the lower guide Z2, as shown in Fig. 6. Thepaper also passes between these guides and the former e and in a spacemade between the said guides and former, as shown in Figs. 4 and 6. Theslot js serves to keep one edge of the paper away from the paste-rolleror paster Z3, which is arranged directly in advance of the guides Z2 m2and works in a vat or paste-box a3. This paster or roller is made of awidth just sufficient to lay upon one edge of the sheet of paper anarrow layer of size or paste, such edge of paper so pasted beingpressed between a pressure-roller p and the paster Z3. Aspring t3 servesto force the press-roller firmly down upon the paper, so as to force itin close contact with the paste-roller. 4The sheet of paper continuingforward has its lapping edges carried between feeding-rollers 0 7.53, bywhich the lapped parts of the paper are pressed together, one edgehaving been turned up against the otherbefore being passed between thetwo rollers o 7c3. These rollers not only perform the office of pressingthe laps t0- gether, but of drawing the paper forward between thecreasing-rollers 'a2 o2 and the former e and its guides. They also feedthe paper forward or cause it to project at such distance from the frontend of the former e as may be desirable to have it cut off by theknifeblade of, in order that the piece severed may bc of the properlength for either a bag or fileslip, as circumstances may require.

The mechanism for operating the feedroll ers may be described asfollows: The main driving-shaftf of the machine (such shaft being shownin Figs. l, 2, 3, fl, and 8) has on one -former c are effected.

, shaft' is such that the circumference of its pitched circle may be inor very nearly in the prolongation of the axis ofthe shaft f. It isimportant that the arrangement of the pitch-circle with respect vto theaxis of the shaft should be borne in mind, for in consequence of it andthepeeuliar operation of the gears a stoppage of the feed-rollers isproduced While the cutting-knife r is passing through the tube of paper;and besides this variable motions of the tube of paper ou the The natureof these motions will be hereinafter more particularly described. Thegear tu? engages with a gear o2, arranged upon a shaft m3, connectedwith the Wrist. ofthe crank by a link t2, the shaft m3 being alsoconnected with the shaft g of the lower feed-roller 7c3 by two linksM2193, arranged as shown in Figs. 2 and 3. Ou the shaft g is a pinionor?, which engages with the Wheel '112. The result produced by thiscombination of the crank and linked gearing is that the feed-rollers o7c3 are caused to remain at rest during about one-quarter of the timethe crank takes to revolve; and besides this the paper is startedgradually forward and its movement accelerated until one-half therequired length to form a bag has been projected beyond the frontend ofthe tube-former c. Next theforward motion of the paper Will be graduallyretarded during the remainder of its forward movement and before themovements of the feed-rollers are stopped. By thus graduallyaccelerating the forward movement of the paper I may start it at a veryslow speed, so as to prevent it from being torn or injured by theinertia of the roller q2. I am also able to gradually arrest the m0-tions of the rollers, so as not only to prevent the paper from beingprojected too farbeyond the former e, but other evil consequences whichmight result from sudden stoppage of the feed and other rollers when athigh speeds. The knife or cutter r is serrated or formed with saw-teeth,and is attached to radial arms q q, extending from a shaft 7c. A cam ut(shown in dotted lines in Fig. l, and more particularly in Fig. 2) isaffixed t0 the main shaft f, and works against a roller l2', projectingfrom one arm q of the knife r, such cam' serving to elevate the knifeand allow it to fall by its own gravity and that of the arms at suchtime as it may bc necessary in order to cause the knife to properlyoperate with reference to the tube of paper. The knife makes an obliquecut through the said tube in order to leave the upper part of the tubeprojecting beyond the other, so as to form the bottom of the bag. Inmaking file-slips, however, the cutter should be made to pass verticallyby or at right angles to the from the machine.

j, arranged as shown in Fig. 4.

former c. ly the term lite-slip I niean a short tube of paper as gene1ally used by merchants and others in filing bills or papers, they beinginserted endwise into the tube or file-slip, which serves to hold themtogether. The cutting-knife may have the edges of each of its teeth madesharp, the bevel being on the underside of the tooth. This inode ofmaking the knife is shown in Fig. 12.

Besides the mechanism for forming the paper into a tube and cutting itinto pieces long enough to form bags, each of such pieces is operatedupon by other portions of the mechanism whose ofce is to paste and benddown the front end of the bag so as to form its bottom and nextdischarge it (the bag) For the performance of such operations I make useof a paster s2, a presser r2, and two discharging-rollers m n. Thepasters2 consists of a bar affixed to curved arms g2 g2, extended from ahorizontal shaft This paster plays into and out of a paste vat orcistern b4, disposed underneath it, and is operated by means of a crankf2, connecting-rod c2 d2 c2, a rocker-arm w, and a cam u. The cam isfixed on the driving-shaft fand works against a roller b3, applied tothe side of the arm w. A spring is to be used to maintain the roller upto the cam, such a spring being shown in Fig. 1 as applied to anothersuch arm marked U, and made to turn on the shaft Z. The presser r2 isextended from ahorizontal rockershaft i, and is operated by a crank b2,a connecting-rod y a2 x, the aforesaid arm U, and a cani t, operatingagainst a roller arranged on the side of the arm U. Fig. l exhibits thespring a5 applied to the arm U, and operating to maintain its roller incontact with the periphery of the cam t. The frame h2, carrying therollers m and n, turns on the shaft t', (see Fig. 4,) and is operated bymeans of a crank-arm h3, connecting-rod ci f3 g3, an arm d", (turning onthe shaft (Z22) a cam c3, (aixed ou the shaft f,) and a spring b5,attached to the arm dit, as seen in Fig. 4.

In order to turn or revolve the dischargingrollers, an endless crossedband 1/2 is made to work around their shafts or pullies thereon, alsoaround a pulley o on the shaft 'L' and a pulleyon tlziedriving-shaft.(See Fig. 3.) The f rame for supporting the operative parts connectedwith the front part of the former e is seen at l) c. During themovements of the cutter o', and before the bag portion is completelysevered from the tube of paper, such bag portion projecting beyond theformer c will be clasped between the paster s2 andthe presser r2, bywhich operation paste will be applied to the front end or part of thepaper tube, which should project a short distance beyond and in front ofthe paster. Next the rollers m and n, with their frame, will bedepressed so as to bend down the paper that projects beyond the pastorand stand in a proper position to receive the bag between them when itis nextmoved forward. They in the drawings.

serve the purpose not only of closing the bottom lap down upon thepasted surface, but of discharging the bag from the machine. The rollersm and n are furnished with scrapingbars 112 j?, each ot' which has oneof its edges very nearly in contact with one of the said rollers, suchbars being arranged as shown They serve to prevent the bag from windingon either of the rollers. Immediately after the paster has performed itsofiice of applying paste to the bag` it descends into the paste-vat h4,and after receiving a fresh supply of paste rises upward into theposition necessary for applying paste to the next bag.

What I claim as my invention is 1. A combination or machine composed ofmachinery for bending a strip of paper around a former e and into atubular form 'so that one edge may be lapped over the other, asdescribed, machinery for pasting such edges or one of them and closingor pressing them together, and machinery for cutting the tube crosswise,as described.

2. The combination of machinery for bending a strip of paper around aformer e and into a tubular shape, so that one edge may be lapped overthe other, as described, machinery for pasting such edges or one of themand pressing them together, machinery for cutting the tube slantwise, asspecified, while it is on the former or holder, and machinery forpasting or cementin g the said tube near its front end and bending orlapping the end ot the tube on the cemented partso as to form the bottomof the bag and discharge said bag from the machine, as specified.

Arranging the pitch-line ofthe feedinggear 102 in orabout in theprolongation of the axis of the shaft of its crank, whereby I obtainintermittent and variable motions of the paper, as described.

et. Arranging and operating the cuttingknife with respect to the formere so as to cause said knife to cut obliquely across the end of theformer and through the tube of paper, as set forth.

5. The combination of the paster, the presser, and ben ding anddischarging rollers or their equivalent, the whole being made to operatetogether substantially as described.

(l. Combining with the rollers m n the mouth-bars or Scrapers 112 jz,applied thereto in manner and for the purpose as stated.

'7. rlhe improved construction ot the cutting-knife, viz., with aserrated edge beveled, substantially as set forth.

In testimony whereof I have hereunto set my signature this 18th day ofNovember, A. D. 1856.

l. F. RICE. Witnesses:

B. R. SMITH, CHAs. Il.. MORGAN.

